1. Using the hydrocarbon C3H8, describe one similarity and one difference between complete and incomplete combustion. Write a balanced chemical equation for the complete and incomplete reaction. Identify which reaction is which.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
1. Using the hydrocarbon C3H8, describe one similarity and one difference between complete and incomplete combustion.
Write a balanced chemical equation for the complete and incomplete reaction. Identify which reaction is which.
3. Consider the compounds Na20 and N2O3 describe how each compound would react with water and identify the products
4. Write the word equation of the following reactions and identify which type of reaction has occurred.
Alg + Na2S ---> Ag2S + NaL
Cu + AgNo3 ---> Ag + cuNO3
6. Predict the products of the following
-write the chemical formula of each product, including state. Write NR if no reaction occurs.
-Balance each chemical reaction
1. Na(s) + Br2(aq)
2. Li2co3(s)
3. (Acs) + Al(No3) (aq)
4. Znso4(aq) + caCl2 (aq)
5. Hcl (aq) + Na2co3 (aq)
6. Li20(aq) + Naco3 (aq)
7. KoH (s)
8. Ag (aq) + Hcl (aq)
9. NiBr3 (aq) + F2(s)
10. HNo3 (aq) + Ca(OH)2 (aq)
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